AD5247BKSZ100-R2

Digital Potentiometers Overview

The AD5247BKSZ100-R2 is a single-channel digital potentiometer IC from Analog Devices, featuring a nominal end-to-end resistance of 100 kΩ. It provides 128 adjustable tap positions controlled via an I²C-compatible serial interface. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical supply current of 0.9 µA at 3.3 V. It utilizes a volatile wiper register and is housed in an ultracompact SC-70-6 package measuring 2 mm × 2.1 mm. The unit supports full read/write access to the wiper register and includes a power-on preset feature that initializes the wiper to midscale.

Digital Potentiometers Feature Summary

• 128-position adjustment with linear taper and 100 kΩ nominal resistance
• I²C-compatible 2-wire serial interface with hard-coded slave address
• SC-70-6 (SOT-363) surface-mount package for space-constrained designs
• Low power consumption: 0.9 µA typical at 3.3 V; 2.7 V to 5.5 V operation

Digital Potentiometers Applications

• Mechanical potentiometer replacement in new electronic designs
• Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
• RF amplifier biasing circuits
• LCD brightness and contrast control
• Gain control and offset adjustment in signal conditioning chains

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix R2 against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Confirm availability status through authorized distributors as supply conditions may vary. Ensure the selected variant matches the required 100 kΩ resistance value and SC-70-6 package dimensions for PCB layout compatibility.

Digital Potentiometers Selection Notes

Select this component when a compact, low-power digital solution is needed to replace mechanical potentiometers. The 100 kΩ resistance value suits applications requiring higher impedance levels. Note that the wiper setting is volatile; a constant bias or external non-volatile memory is required to retain settings after power loss. Verify I²C bus speed requirements against the device's maximum clock frequency specifications.

Digital Potentiometers Part Context

This part belongs to the AD5247 family of 128-position digital potentiometers. Other variants in the series include different resistance values such as 5 kΩ, 10 kΩ, and 50 kΩ. The BKSZ suffix indicates the SC-70-6 package type. The R2 suffix typically denotes reel packaging, distinguishing it from cut-tape or tube options found in other product codes within the same family.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements within the same package include other AD5247 variants with different resistance values (e.g., AD5247BKSZ50-R2). For non-volatile retention, consider the AD512x or AD514x series. Ensure any substitute maintains the 100 kΩ resistance and I²C interface compatibility.